Hvac midterm stuvia Study guides, Class notes & Summaries

List at least five factors that must be controlled if a comfortable indoor environment is to be maintained. -ANSWERThe factors that must be controlled include temperature, humidity, air motion, dust, bacteria, odors, toxic gases, and ionization. ((Ref: 1/1)) Describe in simple terms the basic process by which a refrigerant transfers heat energy. -ANSWERA refrigerant is used to transfer heat when it changes states. When liquid refrigerant evaporates into a vapor, heat is absorbed by the vap...

Two technicians are discussing heat movement. Technician A says that heat is a form of energy. Technician B says that heat travels from hot to cold. Which technician is correct? - ANSWERBoth techs In addition to cooling the passenger compartment, an air conditioning system ________. heats passengers moisturisezes the air dehumidifies the air - ANSWERdehumidifies the air The amount of moisture contained in the air is called ________. ambient humidity temperature none - ANSWERhumidity...

One watt (1 W) of electrical energy is equivalent to ________ Btu's of heat energy. - ANSWER3.413 Btus Latent heat is also know as. A. Heat quantity B. Heat Intensity C. Hidden Heat D. Specific Heat - ANSWERC. Hidden Heat What is superheat? A. A vapor with a temperature above its saturation temperature. B. The temperature of refrigerant leaving the evaporator C. The temperature of refrigerant entering the compressor. D. None of the above - ANSWERA. A vapor with a temperatu...